diff --git a/_config/config.yml b/_config/config.yml
index cde7c0f9fd..c480278a85 100644
--- a/_config/config.yml
+++ b/_config/config.yml
@@ -10,3 +10,9 @@ Name: cmsmodals
 SilverStripe\Admin\ModalController:
   extensions:
     - SilverStripe\CMS\Forms\InternalLinkModalExtension
+---
+Name: cmshierarchy
+---
+SilverStripe\ORM\Hierarchy\Hierarchy:
+  node_threshold_total: 50
+  node_threshold_leaf: 250
\ No newline at end of file